[era] Add era_debug
This commit is contained in:
Ming-Hung Tsai
parent
1bc88bfde8
commit
afbd913e22
|
|
@ -131,6 +131,7 @@ DEVTOOLS_SOURCE=\
|
|||
caching/cache_debug.cc \
|
||||
caching/devel_commands.cc \
|
||||
era/devel_commands.cc \
|
||||
era/era_debug.cc \
|
||||
thin-provisioning/damage_generator.cc \
|
||||
thin-provisioning/devel_commands.cc \
|
||||
thin-provisioning/thin_debug.cc \
|
||||
|
|
|
|||
|
|
@ -34,6 +34,18 @@ namespace era {
|
|||
virtual int run(int argc, char **argv);
|
||||
};
|
||||
|
||||
//------------------------------------------------------
|
||||
|
||||
class era_debug_cmd : public base::command {
|
||||
public:
|
||||
era_debug_cmd();
|
||||
|
||||
virtual void usage(std::ostream &out) const;
|
||||
virtual int run(int argc, char **argv);
|
||||
};
|
||||
|
||||
//------------------------------------------------------
|
||||
|
||||
void register_era_commands(base::application &app);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,12 +1,14 @@
|
|||
#include "era/commands.h"
|
||||
|
||||
using namespace base;
|
||||
using namespace era;
|
||||
|
||||
//----------------------------------------------------------------
|
||||
|
||||
void
|
||||
era::register_era_commands(base::application &app)
|
||||
{
|
||||
app.add_cmd(command::ptr(new era_debug_cmd));
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------
|
||||
|
|
|
|||
|
|
@ -0,0 +1,346 @@
|
|||
// Copyright (C) 2012 Red Hat, Inc. All rights reserved.
|
||||
//
|
||||
// This file is part of the thin-provisioning-tools source.
|
||||
//
|
||||
// thin-provisioning-tools is free software: you can redistribute it
|
||||
// and/or modify it under the terms of the GNU General Public License
|
||||
// as published by the Free Software Foundation, either version 3 of
|
||||
// the License, or (at your option) any later version.
|
||||
//
|
||||
// thin-provisioning-tools is distributed in the hope that it will be
|
||||
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty
|
||||
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License along
|
||||
// with thin-provisioning-tools. If not, see
|
||||
// <http://www.gnu.org/licenses/>.
|
||||
|
||||
#include <boost/lexical_cast.hpp>
|
||||
#include <getopt.h>
|
||||
#include <iostream>
|
||||
#include <string>
|
||||
|
||||
#include "base/command_interpreter.h"
|
||||
#include "base/output_formatter.h"
|
||||
#include "persistent-data/file_utils.h"
|
||||
#include "persistent-data/data-structures/btree.h"
|
||||
#include "persistent-data/data-structures/simple_traits.h"
|
||||
#include "persistent-data/space-maps/disk_structures.h"
|
||||
#include "era/commands.h"
|
||||
#include "era/metadata.h"
|
||||
#include "version.h"
|
||||
|
||||
using namespace dbg;
|
||||
using namespace persistent_data;
|
||||
using namespace std;
|
||||
using namespace era;
|
||||
|
||||
//----------------------------------------------------------------
|
||||
|
||||
namespace {
|
||||
class hello : public dbg::command {
|
||||
virtual void exec(strings const &args, ostream &out) {
|
||||
out << "Hello, world!" << endl;
|
||||
}
|
||||
};
|
||||
|
||||
class help : public dbg::command {
|
||||
virtual void exec(strings const &args, ostream &out) {
|
||||
out << "Commands:" << endl
|
||||
<< " superblock [block#]" << endl
|
||||
<< " block_node <block# of array block-tree node>" << endl
|
||||
<< " bitset_block <block# of bitset block>" << endl
|
||||
<< " era_block <block# of era array block>" << endl
|
||||
<< " writeset_node <block# of writeset tree node>" << endl
|
||||
<< " exit" << endl;
|
||||
}
|
||||
};
|
||||
|
||||
class exit_handler : public dbg::command {
|
||||
public:
|
||||
exit_handler(command_interpreter::ptr interpreter)
|
||||
: interpreter_(interpreter) {
|
||||
}
|
||||
|
||||
virtual void exec(strings const &args, ostream &out) {
|
||||
out << "Goodbye!" << endl;
|
||||
interpreter_->exit_main_loop();
|
||||
}
|
||||
|
||||
command_interpreter::ptr interpreter_;
|
||||
};
|
||||
|
||||
// FIXME: duplication
|
||||
class uint32_show_traits : public uint32_traits {
|
||||
public:
|
||||
typedef uint32_traits value_trait;
|
||||
|
||||
static void show(formatter::ptr f, string const &key, uint32_t const &value) {
|
||||
field(*f, key, boost::lexical_cast<string>(value));
|
||||
}
|
||||
};
|
||||
|
||||
// FIXME: duplication
|
||||
class uint64_show_traits : public uint64_traits {
|
||||
public:
|
||||
typedef uint64_traits value_trait;
|
||||
|
||||
static void show(formatter::ptr f, string const &key, uint64_t const &value) {
|
||||
field(*f, key, boost::lexical_cast<string>(value));
|
||||
}
|
||||
};
|
||||
|
||||
// FIXME: duplication
|
||||
class sm_root_show_traits : public persistent_data::sm_disk_detail::sm_root_traits {
|
||||
public:
|
||||
static void show(formatter::ptr f, string const &key,
|
||||
persistent_data::sm_disk_detail::sm_root const &value) {
|
||||
field(*f, "nr_blocks", value.nr_blocks_);
|
||||
field(*f, "nr_allocated", value.nr_allocated_);
|
||||
field(*f, "bitmap_root", value.bitmap_root_);
|
||||
field(*f, "ref_count_root", value.ref_count_root_);
|
||||
}
|
||||
};
|
||||
|
||||
// for displaying the writeset tree
|
||||
class writeset_show_traits : public era::era_detail_traits {
|
||||
public:
|
||||
typedef era_detail_traits value_trait;
|
||||
|
||||
static void show(formatter::ptr f, string const &key, era_detail const &value) {
|
||||
field(*f, "nr_bits", value.nr_bits);
|
||||
field(*f, "writeset_root", value.writeset_root);
|
||||
}
|
||||
};
|
||||
|
||||
class show_superblock : public dbg::command {
|
||||
public:
|
||||
explicit show_superblock(block_manager::ptr bm)
|
||||
: bm_(bm) {
|
||||
}
|
||||
|
||||
virtual void exec(strings const &args, ostream &out) {
|
||||
if (args.size() > 2)
|
||||
throw runtime_error("incorrect number of arguments");
|
||||
|
||||
block_address b = era::SUPERBLOCK_LOCATION;
|
||||
if (args.size() == 2)
|
||||
b = boost::lexical_cast<block_address>(args[1]);
|
||||
era::superblock sb = read_superblock(bm_, b);
|
||||
|
||||
formatter::ptr f = create_xml_formatter();
|
||||
ostringstream version;
|
||||
field(*f, "csum", sb.csum);
|
||||
field(*f, "flags", sb.flags.encode());
|
||||
field(*f, "blocknr", sb.blocknr);
|
||||
field(*f, "uuid", sb.uuid); // FIXME: delimit, and handle non-printable chars
|
||||
field(*f, "magic", sb.magic);
|
||||
field(*f, "version", sb.version);
|
||||
|
||||
sm_disk_detail::sm_root_disk const *d;
|
||||
sm_disk_detail::sm_root v;
|
||||
{
|
||||
d = reinterpret_cast<sm_disk_detail::sm_root_disk const *>(sb.metadata_space_map_root);
|
||||
sm_disk_detail::sm_root_traits::unpack(*d, v);
|
||||
formatter::ptr f2 = create_xml_formatter();
|
||||
sm_root_show_traits::show(f2, "value", v);
|
||||
f->child("metadata_space_map_root", f2);
|
||||
}
|
||||
|
||||
field(*f, "data_block_size", sb.data_block_size);
|
||||
field(*f, "metadata_block_size", sb.metadata_block_size);
|
||||
field(*f, "nr_blocks", sb.nr_blocks);
|
||||
|
||||
field(*f, "current_era", sb.current_era);
|
||||
{
|
||||
formatter::ptr f2 = create_xml_formatter();
|
||||
writeset_show_traits::show(f2, "value", sb.current_detail);
|
||||
f->child("current_writeset", f2);
|
||||
}
|
||||
|
||||
field(*f, "writeset_tree_root", sb.writeset_tree_root);
|
||||
field(*f, "era_array_root", sb.era_array_root);
|
||||
|
||||
if (sb.metadata_snap)
|
||||
field(*f, "metadata_snap", *sb.metadata_snap);
|
||||
|
||||
f->output(out, 0);
|
||||
}
|
||||
|
||||
private:
|
||||
block_manager::ptr bm_;
|
||||
};
|
||||
|
||||
// FIXME: duplication
|
||||
template <typename ShowTraits>
|
||||
class show_btree_node : public dbg::command {
|
||||
public:
|
||||
explicit show_btree_node(block_manager::ptr bm)
|
||||
: bm_(bm) {
|
||||
}
|
||||
|
||||
virtual void exec(strings const &args, ostream &out) {
|
||||
using namespace persistent_data::btree_detail;
|
||||
|
||||
if (args.size() != 2)
|
||||
throw runtime_error("incorrect number of arguments");
|
||||
|
||||
block_address block = boost::lexical_cast<block_address>(args[1]);
|
||||
block_manager::read_ref rr = bm_->read_lock(block);
|
||||
|
||||
node_ref<uint64_show_traits::value_trait> n = btree_detail::to_node<uint64_show_traits::value_trait>(rr);
|
||||
if (n.get_type() == INTERNAL)
|
||||
show_node<uint64_show_traits>(n, out);
|
||||
else {
|
||||
node_ref<typename ShowTraits::value_trait> n = btree_detail::to_node<typename ShowTraits::value_trait>(rr);
|
||||
show_node<ShowTraits>(n, out);
|
||||
}
|
||||
}
|
||||
|
||||
private:
|
||||
template <typename ST>
|
||||
void show_node(node_ref<typename ST::value_trait> n, ostream &out) {
|
||||
formatter::ptr f = create_xml_formatter();
|
||||
|
||||
field(*f, "csum", n.get_checksum());
|
||||
field(*f, "blocknr", n.get_block_nr());
|
||||
field(*f, "type", n.get_type() == INTERNAL ? "internal" : "leaf");
|
||||
field(*f, "nr_entries", n.get_nr_entries());
|
||||
field(*f, "max_entries", n.get_max_entries());
|
||||
field(*f, "value_size", n.get_value_size());
|
||||
|
||||
for (unsigned i = 0; i < n.get_nr_entries(); i++) {
|
||||
formatter::ptr f2 = create_xml_formatter();
|
||||
field(*f2, "key", n.key_at(i));
|
||||
ST::show(f2, "value", n.value_at(i));
|
||||
f->child(boost::lexical_cast<string>(i), f2);
|
||||
}
|
||||
|
||||
f->output(out, 0);
|
||||
}
|
||||
|
||||
block_manager::ptr bm_;
|
||||
};
|
||||
|
||||
// FIXME: duplication
|
||||
template <typename ShowTraits>
|
||||
class show_array_block : public dbg::command {
|
||||
typedef array_block<typename ShowTraits::value_trait, block_manager::read_ref> rblock;
|
||||
public:
|
||||
explicit show_array_block(block_manager::ptr bm,
|
||||
typename ShowTraits::ref_counter rc)
|
||||
: bm_(bm), rc_(rc) {
|
||||
}
|
||||
|
||||
virtual void exec(strings const& args, ostream &out) {
|
||||
if (args.size() != 2)
|
||||
throw runtime_error("incorrect number of arguments");
|
||||
|
||||
block_address block = boost::lexical_cast<block_address>(args[1]);
|
||||
block_manager::read_ref rr = bm_->read_lock(block);
|
||||
|
||||
rblock b(rr, rc_);
|
||||
show_array_entries(b, out);
|
||||
}
|
||||
|
||||
private:
|
||||
void show_array_entries(rblock const& b, ostream &out) {
|
||||
formatter::ptr f = create_xml_formatter();
|
||||
uint32_t nr_entries = b.nr_entries();
|
||||
|
||||
field(*f, "max_entries", b.max_entries());
|
||||
field(*f, "nr_entries", nr_entries);
|
||||
field(*f, "value_size", b.value_size());
|
||||
|
||||
for (unsigned i = 0; i < nr_entries; i++) {
|
||||
formatter::ptr f2 = create_xml_formatter();
|
||||
ShowTraits::show(f2, "value", b.get(i));
|
||||
f->child(boost::lexical_cast<string>(i), f2);
|
||||
}
|
||||
|
||||
f->output(out, 0);
|
||||
}
|
||||
|
||||
block_manager::ptr bm_;
|
||||
typename ShowTraits::ref_counter rc_;
|
||||
};
|
||||
|
||||
//--------------------------------
|
||||
|
||||
int debug(string const &path) {
|
||||
using dbg::command;
|
||||
|
||||
try {
|
||||
block_manager::ptr bm = open_bm(path, block_manager::READ_ONLY);
|
||||
transaction_manager::ptr null_tm = open_tm(bm, era::SUPERBLOCK_LOCATION);
|
||||
command_interpreter::ptr interp = create_command_interpreter(cin, cout);
|
||||
interp->register_command("hello", command::ptr(new hello));
|
||||
interp->register_command("superblock", command::ptr(new show_superblock(bm)));
|
||||
interp->register_command("block_node", command::ptr(new show_btree_node<uint64_show_traits>(bm)));
|
||||
interp->register_command("bitset_block", command::ptr(new show_array_block<uint64_show_traits>(bm,
|
||||
uint64_show_traits::ref_counter())));
|
||||
interp->register_command("era_block", command::ptr(new show_array_block<uint32_show_traits>(bm,
|
||||
uint32_show_traits::ref_counter())));
|
||||
interp->register_command("writeset_node", command::ptr(new show_btree_node<writeset_show_traits>(bm)));
|
||||
interp->register_command("help", command::ptr(new help));
|
||||
interp->register_command("exit", command::ptr(new exit_handler(interp)));
|
||||
interp->enter_main_loop();
|
||||
|
||||
} catch (std::exception &e) {
|
||||
cerr << e.what();
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------
|
||||
|
||||
era_debug_cmd::era_debug_cmd()
|
||||
: command("era_debug")
|
||||
{
|
||||
}
|
||||
|
||||
void
|
||||
era_debug_cmd::usage(std::ostream &out) const
|
||||
{
|
||||
out << "Usage: " << get_name() << " {device|file}" << endl
|
||||
<< "Options:" << endl
|
||||
<< " {-h|--help}" << endl
|
||||
<< " {-V|--version}" << endl;
|
||||
}
|
||||
|
||||
int
|
||||
era_debug_cmd::run(int argc, char **argv)
|
||||
{
|
||||
int c;
|
||||
const char shortopts[] = "hV";
|
||||
const struct option longopts[] = {
|
||||
{ "help", no_argument, NULL, 'h'},
|
||||
{ "version", no_argument, NULL, 'V'},
|
||||
{ NULL, no_argument, NULL, 0 }
|
||||
};
|
||||
|
||||
while ((c = getopt_long(argc, argv, shortopts, longopts, NULL)) != -1) {
|
||||
switch(c) {
|
||||
case 'h':
|
||||
usage(cout);
|
||||
return 0;
|
||||
|
||||
case 'V':
|
||||
cerr << THIN_PROVISIONING_TOOLS_VERSION << endl;
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (argc == optind) {
|
||||
usage(cerr);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
return debug(argv[optind]);
|
||||
}
|
||||
|
||||
//----------------------------------------------------------------
|
||||
Loading…
Reference in New Issue